laplace



Y @www 'WM5 iliuttf @fitter Letters Patent No.'73,815, dated January 28, 1868 IMPRVEMBNT. 1li BEAltllhT-G PGB. SEFTS dige Stimuli nfs'mi in in itin @this hneln mit mating 'giri ni ligt time 'TO ALL WHOM IT MAY CONCERN:

Be it known that I, JOHN- F. LAPLACE, ofv Hamburg, in the county of New London, and State of Connectient, hare invented a new and improved Bearing for Shafts; and I'do hereby declare that the following is a full, clear, and' erect description thereof, which will enable others skilled inthe art to'make and use the same, reference being had to theaccompanying drawings, forming part of this specicationl, in which- Figure 1 represents u.vertical central section of` my invention.

Figure is annvertod plan view ofthe same.

Similar letters of reference indicate like parts.

This invention relates to anew device for supporting the .ends of vertical and inclined shafts,v an'd of such :horizontal shafts which are arranged in vessels, and which are, by the `rocking motion of the vessel. liable to he thrown into an'nclincd or verticalposition. l

The invention consists in the use of a. series of balls, which are'arranged between two disks, and at equal distances from the axis ci the shaft. One of these disks'is scc'ured at or near theend of the shat,-to the latter,

while the other is firmly secured to a stationary hed. As soon as the shaft is revolved, the disk at.its ldiver'end will he carried around with it, and the balls which sustain the whole weight ci the shaft will revolve around their own axis, and also aroundthat of the shaft. By the application of the balls the friction' produced at the :lower end of the shaft will he greatly reduced.

A represents a vertical shaft, of suitable construction and arrangement.-l AB isv a diskfor plate, mounted at or near to the lower end of the shaft, and at-or near the upper end of the same, as'may be desired'. t is made in form of a dish, that is, it is provided with a projecting rim, a, as is clearly shown in fig. 1. C is a diislror plate, which is ifrrauged stationary below the disk B, being `supported by suitable substantial foundations or bed-plates. 'D D are balls, which are arranged between the disks B and C. E' isa perforated plate, which is arranged 'around the shaft A, and within the Bange a, being held lin a groove, formed in thel inner side of the flange, as shown in iig. 1, the said plate being held so that it can freely turn in the rim a. The balls lit ilslnioirgis` the holes in the plate, and are thereby held the proper distance apart from each other, a'nd form the axis'idi'n' the shaft A. By removing aring, b, which is secured in the ilange a by means of pins or screws c, the plate E can be easily taken out. Instead of being arranged as shown, the flange@ and its appendages may also be secured to the stationary,1 disk, instead of to the revolving disk, and the revolving disk may be arranged below or above the stationary disk, according to the position of the bearing on the shaft., I

What I claim as new, and desire to secure by Letters Patent, is- Y 1. The perforated plete Ecart-ying the balls D, when siich plate is arranged to turn loosely in the groove, constructed as described, inthe flanges-a of the disk,.as herein set forth, for the purpose specified.

2. The disk -B, constructed as described, bearing the perforated plate E, held in place by the ringb and pins c, in combination with the balls D, shaft A', and stationary plateC, as and for the purpose specified.

JQHN F. 'LAPLACE Witnesses Seinn HV. Loan, Annes .Galerne 

